<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8"/>
    <title>习题3-1</title>
    <style type="text/css">
        *{
            margin: 0;
            padding: 0;
        }
        .demo{
            width: 64px;
            height: 64px;
            background: #AAAAAA;
            border-radius: 32px;
            border-top-right-radius: 0;
        }
        P{
            font-size: 14px;
            width: 64px;
            line-height: 64px;
            text-align: center;
        }
        </style>
</head>
<body>
<div class="demo">
        <p>固废处理</p>
</div>
</body>
</html>